This story is a sequel to Princess Celestia: The Changeling Queen

This story is a direct sequel to Princess Celestia: The Changeling Queen. Reading that first is necessary to understand any part of this story.

Co-authored by vren55 and Zervziel

Alternia, sister to Chrysalis, ruled Equestria for a thousand years, disguised as Princess Celestia, while the alicorn slumbered in a healing sleep. Now revealed, Alternia prepares to become Equestria’s first changeling princess, and prove herself to the ponies she loves at the side of her co-rulers Luna and the newly-returned Celestia.

But even as the crown descends onto Alternia’s head, something is stirring in the depths of the Eastern Sea, something that will turn the surface world onto its head. Some power that could destroy Alternia, and all that she loves, before she can even regain the approval of her own ponies.

Will Alternia restore the trust her ponies once placed with her? Will she found a hive? Will she find love?

All that is certain is that Equestria, and the world, will never be the same again.

Now with a TV Tropes page.

Empress Tethys and the Kelpies Created by Zervziel

That Fantastic Cover art is by Plainoasis

Pre-read and edited by:
Blankscape,
FinalFan,
Courage Fire
Cosmic Cowboy

Well it's not actually a sequel. Here is a collection of short stories and histories detailing the life of Alternia, a changeling queen impersonating the life of Princess Celestia. These are the stories of the ruler under her mask.

Reading the main story: Princess Celestia: The Changeling Queen is a requirement if you don't want to be spoiled or confused. I will try to provide background information when I can.

For readers of the main story, there are basically no spoilers if you've read past chapter 8. Enjoy!

Rainbow Dash's morning was pretty much ruined.
She tripped getting out of bed and landed flat on her face, giving herself an aching muzzle.
She forgot to buy her favorite brand of hay flakes at the store yesterday and had to eat plain toast for breakfast.
She found out she had to pull double-duty today and tomorrow on the weather patrol.
Oh, and she found a nearly-dead foal, broken and bleeding at the edge of Ponyville.

The rest of her day became a whirlpool of stress and worry but the colt woke up, thank Celestia.
Something's not right, though. Nopony can find his parents, he's not in the registers, and there's an unsettling look in his eye...

-
YouTube reading by Fire Hearth

Chinese Translation by forgivenlove

Russian Translation by Likantrop

TV Tropes page, if you're interested in that sort of thing.

This story is a sequel to Necromancy For Foals

Twilight Sparkle and Rainbow Dash find themselves drawn by the call of the cutie map to a jungle in the middle of nowhere. Drawn further by the knowledge of an ancient temple, they are confronted with icy cold and a sense of dread.

A Necromancer was sealed away in this temple a thousand years ago.

Now, he is waking up...

((Sequel to Necromancy for Foals. Artwork by The-Minuscule-Task on Tumblr.))

Set only a week after the banishment of Princess Luna to the moon, the realm of Equestria is in a state of upheaval. Celestia's royal guard attempt to regain control over the vast empire once ruled by dual monarchs, and the young alicorn's actions as a ruler have become a subject of scrutiny after her sister's attempted coup. Two factions have risen in the turmoil: The Knights of the Sun and The Bright Moon.

Far away from the political infighting and sword rattling exists a small mining town on the outskirts of Equestrian territory. Where once the royal guard would have no trouble fending off raids from bandits or other criminals, the panic of the capitol has caused a withdrawal of military forces to more essential cities and trading ports. Completely undefended and without a spell or sword amongst them, this town was soon overrun by a band of bi-pedal canines calling themselves the Diamond Dogs. As brutal as they are lazy, the Diamond Dogs have forced the local population to work until collapse to collect gems from the town mine.

Outraged by his inability to fend off these bandits and thieves, a young unicorn named Bone Marrow tries with all of his might to find his purpose in life - his cutie mark - and hopes that it will be enough to drive off the invaders of his home. He will soon discover that his special talent is far more than he bargained for.

((A Sequel will begin for this story as soon as I finish I Am a Pet Changeling. Stay tuned on Discord! https://discord.gg/nDXd3AB ))

No one alive today can say where she came from; simply that she has always been there.

And yet, few ponies have had a greater impact on Princess Celestia's life than Raven, her most faithful aide.

Inspired by and based off of a headcanon put forth by Heir-of-Rick, though perhaps a bit less insidious than what he had in mind. He very kindly provided an alternate version of his image for me to use as my cover image! Text added by me.

All comments and criticism very welcome!

Featured in the Royal Canterlot Library! Go there to read the interview for some behind-the-scenes info on this story!

Translations: Chinese, Spanish!

Sunset Shimmer is having the worst day of her life. She used to be important. She was the personal student of Princess Celestia. She was a future leader of Equestria. She was the kind of mare that everypony envied.

Today, it's all crashing down around her.

Alternate Universe: What if Sunset Shimmer hadn't gone through the mirror?

Suddenly finding herself in hell, Twilight is presented with one fact: for the rest of eternity, she's stuck in a library holding every book possible. She's expected to organize them and is allowed to read them.

What makes this hell, again?

Now has two Spanish translations, one by SPANIARD KIWI and another by Pugg-Senpai.

This story is a sequel to Changeling Space Program

Twilight Sparkle's experimental interplanetary drive has malfunctioned, stranding Starlight Glimmer, Spitfire, Cherry Berry, a changeling and a dragon on a hostile planet in another universe. With limited food supplies, very little magic, no communications with home, and no way to leave the planet, they must survive until somepony rescues them.

Fortunately they crashed right next door to another creature with the exact same problem- a creature named Mark Watney.

They're going to science the buck out of everything- and do whatever it takes to survive Mars and get everybody home.

TVTropes page here! Thanks to GymQuirk for making it!

Commissioned art and fan works from the readers! Thanks, everybody!

This experiment in an updates-daily story was made possible by a generous grant from Canary in the Coal Mine and viewers like you.

(Sex tag for crude talk about sex, but no actual sex in the story.)